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Atlantic Tropical Weather Outlook
2018-09-12 07:23:39| National Hurricane Center (Atlantic)
214 ABNT20 KNHC 120523 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 200 AM EDT Wed Sep 12 2018 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: The National Hurricane Center is issuing advisories on Hurricane Florence, located over the western Atlantic Ocean, on Hurricane Helene, located over the eastern Atlantic, and on Tropical Storm Isaac, located several hundred miles east of the Lesser Antilles. Showers and thunderstorms have not become any better organized during the past several hours in association with a trough of low pressure located over the south-central Gulf of Mexico. In addition, satellite data and surface observations indicate that there is still no sign of a surface circulation. However, upper-level winds are forecast to become more conducive for development, and a tropical depression is likely to form on Thursday or Friday before the system reaches the western Gulf Coast. An Air Force reconnaissance plane is scheduled to investigate the system later today, if necessary. Regardless of development, heavy rainfall and gusty winds are expected across portions of northeastern Mexico, Texas, and Louisiana late this week, and interests there should monitor the progress of this system. * Formation chance through 48 hours...medium...50 percent. * Formation chance through 5 days...high...70 percent. A non-tropical area of low pressure located several hundred miles west of the Azores is producing a large area of showers and thunderstorms and gale-force winds. This system could gradually acquire tropical or subtropical characteristics during the next few days while it meanders over the northeastern Atlantic Ocean. For more information, see High Seas Forecasts issued by the National Weather Service. * Formation chance through 48 hours...medium...40 percent. * Formation chance through 5 days...medium...50 percent. && High Seas Forecasts issued by the National Weather Service are under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and available on the Web at https://ocean.weather.gov/shtml/NFDHSFAT1.shtml. $$ Forecaster Cangialosi
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